Rendering from Max Physical Camera with Exposure control
Corona provides limited support for the native 3ds Max Physical Camera exposure control:
- Exposure control installed in the 3ds Max "Environment and Effects" dialog has no effect when rendering from a free view. It is taken into account only when rendering from a native 3ds Max Physical Camera.
- After installing Exposure Control for a specific 3ds Max Physical Camera, your need to restart interactive rendering to see the changes. Keep in mind that changing any Exposure Control parameter will restart IR, while adjusting exposure from Corona tone mapping settings will not.
- You need to add a Tint operator to the Corona tone mapping stack in order for any parameters under "White Balance" under Exposure Control to work. Otherwise, you will see the following error message:
- Vignette in the 3ds Max Exposure Control is not supported.
Generally, in order to get the desired exposure, white balance, tint, and other tone mapping / post processing effects, you should use Corona's settings and remove any settings installed by 3ds Max in the Environment and Effects dialog (even when rendering from a 3ds Max Physical Camera). When possible, it is also best to use a Corona Camera.
Alternatively, you can apply a CoronaCameraMod modifier to a 3ds Max Physical Camera to have Corona-like control over it.